Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / Management / EventlogProvider.cs / 1 / EventlogProvider.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.Management { using System.Configuration; using System.Configuration.Provider; using System.Collections.Specialized; using System.Security.Principal; using System.Web.Util; using System.Globalization; using System.Collections; using System.Web.UI; using System.Security.Permissions; //////////// // Events //////////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class EventLogWebEventProvider : WebEventProvider, IInternalWebEventProvider { const int EventLogParameterMaxLength = 32 * 1024 - 2; const string _truncateWarning = "..."; int _maxTruncatedParamLen; internal EventLogWebEventProvider() { } public override void Initialize(string name, NameValueCollection config) { Debug.Trace("WebEventLogEventProvider", "Initializing: name=" + name); _maxTruncatedParamLen = EventLogParameterMaxLength - _truncateWarning.Length; base.Initialize(name, config); ProviderUtil.CheckUnrecognizedAttributes(config, name); } void AddBasicDataFields(ArrayList dataFields, WebBaseEvent eventRaised) { WebApplicationInformation appInfo = WebBaseEvent.ApplicationInformation; // Data contained in WebBaseEvent dataFields.Add(eventRaised.EventCode.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(eventRaised.Message); dataFields.Add(eventRaised.EventTime.ToString()); dataFields.Add(eventRaised.EventTimeUtc.ToString()); dataFields.Add(eventRaised.EventID.ToString("N", CultureInfo.InstalledUICulture)); dataFields.Add(eventRaised.EventSequence.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(eventRaised.EventOccurrence.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(eventRaised.EventDetailCode.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(appInfo.ApplicationDomain); dataFields.Add(appInfo.TrustLevel); dataFields.Add(appInfo.ApplicationVirtualPath); dataFields.Add(appInfo.ApplicationPath); dataFields.Add(appInfo.MachineName); if (eventRaised.IsSystemEvent) { dataFields.Add(null); // custom event details } else { WebEventFormatter formatter = new WebEventFormatter(); eventRaised.FormatCustomEventDetails(formatter); dataFields.Add(formatter.ToString()); } } void AddWebProcessInformationDataFields(ArrayList dataFields, WebProcessInformation processEventInfo) { dataFields.Add(processEventInfo.ProcessID.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(processEventInfo.ProcessName); dataFields.Add(processEventInfo.AccountName); } void AddWebRequestInformationDataFields(ArrayList dataFields, WebRequestInformation reqInfo) { string user; string authType; bool authed; IPrincipal iprincipal = reqInfo.Principal; if (iprincipal == null) { user = null; authed = false; authType = null; } else { IIdentity id = iprincipal.Identity; user = id.Name; authed = id.IsAuthenticated; authType = id.AuthenticationType; } dataFields.Add(reqInfo.RequestUrl); dataFields.Add(reqInfo.RequestPath); dataFields.Add(reqInfo.UserHostAddress); dataFields.Add(user); dataFields.Add(authed.ToString()); dataFields.Add(authType); dataFields.Add(reqInfo.ThreadAccountName); } void AddWebProcessStatisticsDataFields(ArrayList dataFields, WebProcessStatistics procStats) { dataFields.Add(procStats.ProcessStartTime.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(procStats.ThreadCount.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(procStats.WorkingSet.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(procStats.PeakWorkingSet.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(procStats.ManagedHeapSize.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(procStats.AppDomainCount.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(procStats.RequestsExecuting.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(procStats.RequestsQueued.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(procStats.RequestsRejected.ToString(CultureInfo.InstalledUICulture)); } void AddExceptionDataFields(ArrayList dataFields, Exception exception) { if (exception == null) { dataFields.Add(null); dataFields.Add(null); } else { dataFields.Add(exception.GetType().Name); dataFields.Add(exception.Message); } } void AddWebThreadInformationDataFields(ArrayList dataFields, WebThreadInformation threadInfo) { dataFields.Add(threadInfo.ThreadID.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(threadInfo.ThreadAccountName); dataFields.Add(threadInfo.IsImpersonating.ToString(CultureInfo.InstalledUICulture)); dataFields.Add(threadInfo.StackTrace); } void AddViewStateExceptionDataFields(ArrayList dataFields, ViewStateException vse) { dataFields.Add(SR.GetString(vse.ShortMessage)); dataFields.Add(vse.RemoteAddress); dataFields.Add(vse.RemotePort); dataFields.Add(vse.UserAgent); dataFields.Add(vse.PersistedState); dataFields.Add(vse.Referer); dataFields.Add(vse.Path); } public override void ProcessEvent(WebBaseEvent eventRaised) { Debug.Trace("EventLogWebEventProvider", "ProcessEvent: event=" + eventRaised.GetType().Name); int hr; ArrayList dataFields = new ArrayList(35); WebEventType eventType = WebBaseEvent.WebEventTypeFromWebEvent(eventRaised); // !!! IMPORTANT note: // The order of fields added to dataFields MUST match that of the fields defined in the events // in msg.mc AddBasicDataFields(dataFields, eventRaised); if (eventRaised is WebManagementEvent) { AddWebProcessInformationDataFields(dataFields, ((WebManagementEvent)eventRaised).ProcessInformation); } if (eventRaised is WebHeartbeatEvent) { AddWebProcessStatisticsDataFields(dataFields, ((WebHeartbeatEvent)eventRaised).ProcessStatistics); } if (eventRaised is WebRequestEvent) { AddWebRequestInformationDataFields(dataFields, ((WebRequestEvent)eventRaised).RequestInformation); } if (eventRaised is WebBaseErrorEvent) { AddExceptionDataFields(dataFields, ((WebBaseErrorEvent)eventRaised).ErrorException); } if (eventRaised is WebAuditEvent) { AddWebRequestInformationDataFields(dataFields, ((WebAuditEvent)eventRaised).RequestInformation); } if (eventRaised is WebRequestErrorEvent) { AddWebRequestInformationDataFields(dataFields, ((WebRequestErrorEvent)eventRaised).RequestInformation); AddWebThreadInformationDataFields(dataFields, ((WebRequestErrorEvent)eventRaised).ThreadInformation); } if (eventRaised is WebErrorEvent) { AddWebRequestInformationDataFields(dataFields, ((WebErrorEvent)eventRaised).RequestInformation); AddWebThreadInformationDataFields(dataFields, ((WebErrorEvent)eventRaised).ThreadInformation); } if (eventRaised is WebAuthenticationSuccessAuditEvent) { dataFields.Add(((WebAuthenticationSuccessAuditEvent)eventRaised).NameToAuthenticate); } if (eventRaised is WebAuthenticationFailureAuditEvent) { dataFields.Add(((WebAuthenticationFailureAuditEvent)eventRaised).NameToAuthenticate); } if (eventRaised is WebViewStateFailureAuditEvent) { AddViewStateExceptionDataFields(dataFields, ((WebViewStateFailureAuditEvent)eventRaised).ViewStateException ); } for (int i = 0; i < dataFields.Count; i++) { object field = dataFields[i]; if (field == null) { continue; } int len = ((string)field).Length; if (len > EventLogParameterMaxLength) { // Truncate it and append a warning message to the end dataFields[i] = ((string)field).Substring(0, _maxTruncatedParamLen) + _truncateWarning; } } #if !FEATURE_PAL // FEATURE_PAL does not enable IIS-based hosting features hr = UnsafeNativeMethods.RaiseEventlogEvent((int)eventType, (string[])dataFields.ToArray(typeof(string)), dataFields.Count); if (hr != 0) { throw new HttpException(SR.GetString(SR.Event_log_provider_error, "0x" + hr.ToString("X8", CultureInfo.InstalledUICulture))); } #endif // !FEATURE_PAL } public override void Flush() { } public override void Shutdown() { } } }
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